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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 10 — May. 15, 2013
  • pp: 1618–1620

Optical vortices in antiguides

Lorenzo Marrucci, Noel F. Smyth, and Gaetano Assanto  »View Author Affiliations


Optics Letters, Vol. 38, Issue 10, pp. 1618-1620 (2013)
http://dx.doi.org/10.1364/OL.38.001618


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Abstract

We address the question of whether an optical vortex can be trapped in a dielectric structure with a core of a lower refractive index than the cladding—namely an antiguide. Extensive numerical simulations seem to indicate that this inverse trapping of a vortex is not possible, at least in straightforward implementations. Yet, the interaction of a vortex beam with a curved antiguide produces interesting effects, namely a small but finite displacement of the optical energy center-of-mass and the creation of a symmetrical vortex–antivortex pair on the exterior of the antiguide.

© 2013 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(050.4865) Diffraction and gratings : Optical vortices
(260.6042) Physical optics : Singular optics

ToC Category:
Diffraction and Gratings

History
Original Manuscript: March 6, 2013
Manuscript Accepted: April 1, 2013
Published: May 7, 2013

Citation
Lorenzo Marrucci, Noel F. Smyth, and Gaetano Assanto, "Optical vortices in antiguides," Opt. Lett. 38, 1618-1620 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-10-1618


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